CN202080733U - Steam tracing structure of rotary valve shell - Google Patents
Steam tracing structure of rotary valve shell Download PDFInfo
- Publication number
- CN202080733U CN202080733U CN 201120129339 CN201120129339U CN202080733U CN 202080733 U CN202080733 U CN 202080733U CN 201120129339 CN201120129339 CN 201120129339 CN 201120129339 U CN201120129339 U CN 201120129339U CN 202080733 U CN202080733 U CN 202080733U
- Authority
- CN
- China
- Prior art keywords
- steam
- rotovalve
- housing
- rotary valve
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 9
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 9
- 238000009413 insulation Methods 0.000 claims description 9
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 4
- 239000011490 mineral wool Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 9
- 238000010438 heat treatment Methods 0.000 abstract description 5
- 239000002184 metal Substances 0.000 abstract description 3
- 239000000843 powder Substances 0.000 abstract description 3
- 239000007787 solid Substances 0.000 abstract description 3
- -1 Polytetrafluoroethylene Polymers 0.000 abstract 1
- 230000004927 fusion Effects 0.000 abstract 1
- 239000008187 granular material Substances 0.000 abstract 1
- 230000001788 irregular Effects 0.000 abstract 1
- 206010020843 Hyperthermia Diseases 0.000 description 4
- 230000036031 hyperthermia Effects 0.000 description 4
- 239000002245 particle Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
Images
Landscapes
- Thermal Insulation (AREA)
Abstract
The utility model relates to a feeding rotary valve applied for conveying solid powder and granular materials, in particular to a steam tracing structure of a rotary valve shell. An end cover plate is arranged outside the rotary valve shell; the end cover plate is fixed outside the rotary valve shell through a fastening piece and a PTFE (Polytetrafluoroethylene) gasket, and a gap exists between the end cover plate and the rotary valve shell; an insulating layer is further wrapped outside the end cover plate; a steam inlet pipe connected with a steam air source is communicated into the gap, and a steam outlet pipe is further communicated out of the gap. The steam tracing structure mainly solves the technical problem that the existing steam tracing electric tracing structure of a rotary valve shell has an irregular shape outside the shell so that a resistance wire is very difficult to completely be attached to the metal shell to cause non-uniform heating and local high-temperature enables some materials with relatively lower fusion points to generate plasticizing so as to influence the product quality; the shell is uniformly heated through steam so that the material plasticizing caused by local high-temperature of the shell owing to non-uniform heating is prevented; and the steam tracing structure can be widely applied to tracing-required occasions of rotary valves.
Description
Technical field
The utility model relates to and is applied to the solid powder/particle material and carries and to use feed rotovalve, particularly a kind of rotovalve housing steam tracing structure.
Background technology
Rotovalve is a kind of special-purpose rotating machinery that is used for air-transport system solid powder/particle material (as polyolefin, PTA etc.) feed, in order to reduce the leakage of delivering gas as much as possible, just require the gap between rotovalve housing and rotor and the end cap as much as possible little, usually less than 0.05mm.When the temperature difference between temperature of charge and the ambient temperature surpasses 80～100 ℃, if rotovalve housing and rotor start under the normal temperature state, because the het expansion speed of housing will cause rotor by the phenomenon of locking less than the het expansion speed of rotor, can damage equipment when serious.Therefore, be necessary before rotovalve starts, housing to be carried out preheating, make that case temperature and temperature of charge are approaching, so just the situation that can avoid rotor to block.
Existing rotovalve housing companion heat adopts the electric tracing structure usually, as shown in Figure 1, 2:, around hot water radiation wire (band) B housing is heated in rotovalve housing A outer felt; Then, the heat-insulation layer C to whole housing A coating rock wool or alumina silicate fibre is incubated.
But, the major defect of above-mentioned existing electric tracing structure is: because hull outside is irregularly shaped, make that resistor wire is difficult to fit fully with metal shell, cause heating inhomogeneous, localized hyperthermia can make the lower material of some fusing points produce the plasticizing phenomenon, influences product quality.In addition, electrically heat tracing time of heat is longer, needs 4～6 hours usually.
The utility model content
The purpose of this utility model is to provide a kind of rotovalve housing steam tracing structure, mainly solve the thermoelectric companion of existing rotovalve housing companion heat structure, because hull outside is irregularly shaped, make that resistor wire is difficult to fit fully with metal shell, cause heating inhomogeneous, localized hyperthermia can make the lower material of some fusing points produce the plasticizing phenomenon, influence the technical matters of product quality, it is by the even heated shell of steam, avoided because the inhomogeneous phenomenon that makes that housing localized hyperthermia causes material plasticizing of heating can be widely used in the occasion that rotovalve need be accompanied heat.
For achieving the above object, the utility model is achieved in that
A kind of rotovalve housing steam tracing structure, it is characterized in that: this rotovalve housing is provided with end casing outward, and there is the gap by fastener and PTFE spacers in described end casing outside the rotovalve housing and between end casing and the rotovalve housing; Described end casing also coats heat-insulation layer outward; Be communicated in the gap with steam source of the gas bonded assembly steam inlet tube, this gap also pass-out has steam to go out pipe.
Described rotovalve housing steam tracing structure is characterized in that: described end casing by one group of tightening screw and PTFE spacers on rotovalve casing bracing muscle.
Described rotovalve housing steam tracing structure is characterized in that: described heat-insulation layer is rock wool layer or alumina silicate fibre layer.
Described rotovalve housing steam tracing structure, it is characterized in that: also be provided with temperature sensor on the described rotovalve housing, the signal output part of this temperature sensor is connected to control unit.
By said structure, advantage of the present utility model is:
1, the utility model is simple in structure, compact, is easy to install, and thermal source is industrial typical media and is easy to realize that heating-up temperature is even, can effectively solve the problem that localized hyperthermia causes material plasticizing.
2, the utility model can be used for the rotovalve equipment, particularly material of petrochemical industry and circumstance of temperature difference greater than 80 ℃ occasion.
Description of drawings
Fig. 1 is the structural representation of the thermoelectric companion of existing rotovalve housing companion heat structure.
Fig. 2 is the side direction view of Fig. 1.
Among Fig. 1,2: A-rotovalve housing, B-hot water radiation wire (band), C-heat-insulation layer.
Fig. 3 is the structural representation of the utility model rotovalve housing steam tracing structure.
Fig. 4 is the side direction view of Fig. 3.
Among Fig. 3,4: 1-steam goes out pipe, 2-steam inlet tube, 3-rotovalve housing, 4-end casing, 5-heat-insulation layer, 6-tightening screw, 7-PTFE pad, 8-temperature sensor.
The specific embodiment
See also Fig. 3,4, it is the structural representation of a kind of rotovalve housing of the utility model steam tracing structure one preferred embodiment.As shown in the figure: these rotovalve housing 3 outer end casings 4 that are provided with, described end casing 4 is fixed on outside the rotovalve housing 3 and between end casing 4 and the rotovalve housing 3 by fastener and PTFE pad 7 and has the gap; The described end casing 4 outer heat-insulation layers 5 that also coat; Be communicated in the gap with steam source of the gas bonded assembly steam inlet tube 2, this gap also pass-out has steam to go out pipe 1.As a kind of preferred structure, described end casing 4 is fixed on rotovalve housing 3 reinforced ribs by one group of tightening screw 6 and PTFE pad 7.Described heat-insulation layer 5 is rock wool layer or alumina silicate fibre layer.Also be provided with temperature sensor 8 on the described rotovalve housing 3, the signal output part of this temperature sensor 8 is connected to control unit.
When the utility model used, low pressure steam was fully contacted with housing 3 by the gap that steam inlet tube 2 feeds between end casing 4 and the rotovalve housing 3, and even heated shell 3, gas and lime set go out pipe 1 by steam and discharge.Housing 3 temperature are measured by the temperature sensor 8 that is arranged at housing 3 two ends, feed back to control unit.
Claims (4)
1. rotovalve housing steam tracing structure, it is characterized in that: the outer end casing (4) that is provided with of this rotovalve housing (3), described end casing (4) is fixed on outside the rotovalve housing (3) and between end casing (4) and the rotovalve housing (3) by fastener and PTFE pad (7) and has the gap; The outer heat-insulation layer (5) that also coats of described end casing (4); Be communicated in the gap with steam source of the gas bonded assembly steam inlet tube (2), this gap also pass-out has steam to go out pipe (1).
2. rotovalve housing steam tracing structure according to claim 1 is characterized in that: described end casing (4) is fixed on rotovalve housing (3) reinforced rib by one group of tightening screw (6) and PTFE pad (7).
3. rotovalve housing steam tracing structure according to claim 1 is characterized in that: described heat-insulation layer (5) is rock wool layer or alumina silicate fibre layer.
4. according to claim 1 or 2 or 3 described rotovalve housing steam tracing structures, it is characterized in that: also be provided with temperature sensor (8) on the described rotovalve housing (3), the signal output part of this temperature sensor (8) is connected to control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120129339 CN202080733U (en) | 2011-04-28 | 2011-04-28 | Steam tracing structure of rotary valve shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120129339 CN202080733U (en) | 2011-04-28 | 2011-04-28 | Steam tracing structure of rotary valve shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202080733U true CN202080733U (en) | 2011-12-21 |
Family
ID=45341377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120129339 Expired - Lifetime CN202080733U (en) | 2011-04-28 | 2011-04-28 | Steam tracing structure of rotary valve shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202080733U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104411398A (en) * | 2012-07-12 | 2015-03-11 | 英尼奥斯欧洲股份公司 | Process for operating hot particle rotary valves |
| CN106429246A (en) * | 2016-06-28 | 2017-02-22 | 铜陵有色兴铜机电制造有限公司 | Insulation star-shaped discharge valve |
-
2011
- 2011-04-28 CN CN 201120129339 patent/CN202080733U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104411398A (en) * | 2012-07-12 | 2015-03-11 | 英尼奥斯欧洲股份公司 | Process for operating hot particle rotary valves |
| US9663307B2 (en) | 2012-07-12 | 2017-05-30 | Ineos Europe Ag | Process for operating hot particle rotary valves |
| CN106429246A (en) * | 2016-06-28 | 2017-02-22 | 铜陵有色兴铜机电制造有限公司 | Insulation star-shaped discharge valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee after: Sinopec Corp. Patentee after: SINOPEC Shanghai Engineering Company Limited Address before: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee before: Sinopec Corp. Patentee before: Sinopec Shanghai Engineering Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20111221 |
|
| CX01 | Expiry of patent term |